CONST - Constitution of the Republic of

(4) The Government may, by order, deprive of his citizenship any person who is a citizen of Singapore by naturalisation if the Government is satisfied that, without the Government’s approval, he has accepted, served in or performed the duties of any office, post or employment under the government of any foreign country or any political subdivision thereof, or under any agency of such a government, in any case where an oath, affirmation or declaration of allegiance is required in respect of the office, post or employment: Provided that a person shall not be deprived of his citizenship under this clause by reason of anything done before the commencement of this Constitution notwithstanding that he was at the time a citizen of Singapore.